Granted Patent
Utility
US 4,810,084 · App. 06/893,713
Retinal camera
Inventor:
Masaru Nyui
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Aug 6, 1986
Inventor
Masaru Nyui
Assignee (at issue)
Tokyo Kogaku Kikai Kabushiki Kaisha
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.